RDFa Lite: A Subset of RDFa 1.1
Learn about RDFa Lite, a subset of RDFa 1.1 that consists of five simple attributes - vocab, typeof, property, resource, and prefix. Discover how RDFa Lite works, its compatibility with schema.org terms, and its advantages over Microdata markup.
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Presentation Transcript
What is RDFa Lite? RDFa 1.1 Lite is a subset of RDFa 1.1 Five simple attributes: vocab, typeof, property, resource, and prefix Completely upwards compatible RDFa 1.1 Works well with schema.org terms Consists of five simple attributes: vocab, typeof, property, resource and prefix
RDFa Lite example The vocab attribute sets the default vocabulary for a block, typeof sets the class and property introduces a property <p vocab="http://schema.org/" typeof="Person"> My name is <span property="name">Manu Sporny</span> and you can give me a ring via <span property="telephone">1-800-555-0199</span> or visit <a property="url" href="http://manu.sporny.org/">my homepage</a> </p>
RDFa Lite vs. Microdata <p vocab="http://schema.org/" typeof="Person"> My name is <span property="name">Manu Sporny</span> and you can give me a ring via <span property="telephone">1-800-555-0199</span> or visit <a property="url" href="http://manu.sporny.org/">my homepage</a> </p> <p itemscope itemtype="http://schema.org/Person"> My name is <span itemprop="name">Manu Sporny</span> and you can give me a ring via <span itemprop="telephone">1-800-555-0199</span> or visit <a itemprop="url" href="http://manu.sporny.org/">my homepage</a> </p>
Microdata vs. RDFa lite serilization The RDFa Lite serialization looks almost isomorphic to the Microdata version Changes: itemprop -> property itemscope is dropped itemtype-> typeof vocab="http://schema.org/" added to the body or some other enclosing taga
RDFa Lite example: resource The resource attribute gives an object value (URL) for a subject and the prefix attribute eases mixing vocabularies <p vocab="http://schema.org/" typeof="Person" resource="#manu" prefix="ov:http://open.vocab.org/terms/" > My favorite animal is the <span property="ov:preferredAnimal">Liger</span> </p>
Conclusions One advantage of Microdata markup was it was simpler than RDFa RDFa Lite offers the same simplicity But with two advantages: You can add statements in other RDF vocabularies You can take advantage of more complex RDFa markup features if and when needed
